Blood Samples A second intravenous line will be placed in the other arm after the induction of anesthesia and prior to surgical incision to collect blood samples. 15 ml of blood will be collected at three time points: (1) preinduction, (2) just after the advanced EA treatment (3) after arrival in PACU and prior to additional medication administration (approximately 120 minutes post preinduction sample). These specimens will be placed into vacutainer tubes with no anti-coagulant. Blood will be drawn with a syringe attached directly to the angiocatheter which has been placed intravenously. To prevent hemolysis, blood will be transferred without a needle, to a vacutainer whose top has been removed. The vacutainer top will be replaced and specimens labeled with study name, subject's study ID number, sample number, and dated. Bloods from the first two time points will be kept refrigerated until the final sample is obtained postoperatively. Blood samples will be transported to the Institute for Complementary and Alternative Medicine/School of Health Related Professions Interprofessional Health Research Laboratory within the Department of Clinical Lab Sciences (G level, Bergen Building, 65 Bergen St., Newark). They will be centrifuged, serum removed, aliquoted, and stored at -80C until analysis.